摘要:
Disclosed herein are polymers that can be made cationic and used to deliver a substance into a cell. Also disclosed are pharmaceutical compositions comprising the polymers and methods of using the polymers.
摘要:
Aminoglycoside-polyamines are disclosed along with methods of use thereof in displacement chromatography and as DNA-binding ligands. The aminoglycoside-polyamines are derivatives of carbohydrates, such as sugars, amino sugars, deoxysugars, glycosides, nucleosides and their substituted counterparts. The subject polyamines possess a group in place of at least one hydrogen atom of at least one hydroxyl group of the carbohydrate compound. In these compounds R1 is an alkyl group or an azaalkyl group, and R2 is a primary or secondary amino group.
摘要:
Methods to form a novel aminoglycoside based hydrogel for high-throughput generation of 3D dormant, relapsed and micrometastatic tumor microenvironments are disclosed. In addition, methods of screening agents against tumor cells grown in the 3D environments disclosed herein that include, for example, screening of lead drugs and therapies for an effect on dormant, relapsed and/or micrometastatic tumor cells.
摘要:
Biomedical devices and methods are disclosed for the development of 3D polymeric scaffolds for cell culture, high throughput screens for biomolecule purification, and generation of bone mimetic materials. The devices may feature multiple geometries, and scaffold generation capabilities include multiple gel types utilizing organic and aqueous phase pregel. Additionally, macroporous and non-macroporous morphologies are possible.
摘要:
A method to form a lipid-containing aminoglycoside-based polymer, where the method includes reacting an aminoglycoside with a diepoxide to form an aminoglycoside-based polymeric material, and then reacting the aminoglycoside-based polymeric material with an acyl chloride to form the lipid-containing aminoglycoside-based polymer.
摘要:
The instant disclosure is directed to compositions comprising an encapsulated spheroid, and methods of making and using the same. A composition may comprise a spheroid comprising a plurality of cells and aminoglycoside antibiotic-derived hydrogel beads, wherein the spheroid is encapsulated by the aminoglycoside antibiotic-derived hydrogel beads to form an encapsulated spheroid. A method may comprise administering the composition to a subject in need thereof. Another method may comprise administering a compound to the encapsulated spheroid. A method of creating an encapsulated spheroid may comprise coating a surface with an aminoglycoside antibiotic-derived hydrogel, culturing a plurality of cells on the surface, thereby creating a spheroid, and encapsulating the spheroid with a plurality of aminoglycoside antibiotic-derived hydrogel beads.
摘要:
Biomedical devices and methods are disclosed for the development of 3D polymeric scaffolds for cell culture, high throughput screens for biomolecule purification, and generation of bone mimetic materials. The devices may feature multiple geometries, and scaffold generation capabilities include multiple gel types utilizing organic and aqueous phase pregel. Additionally, macroporous and non-macroporous morphologies are possible.
摘要:
Methods to form a novel aminoglycoside based hydrogel for high-throughput generation of 3D dormant, relapsed and micrometastatic tumor microenvironments are disclosed. In addition, methods of screening agents against tumor cells grown in the 3D environments disclosed herein that include, for example, screening of lead drugs and therapies for an effect on dormant, relapsed and/or micrometastatic tumor cells.
摘要:
Aminoglycoside-polyamines are disclosed along with methods of use thereof in displacement chromatography and as DNA-binding ligands. The aminoglycoside-polyamines are derivatives of carbohydrates, such as sugars, amino sugars, deoxysugars, glycosides, nucleosides and their substituted counterparts. The subject polyamines possess a group in place of at least one hydrogen atom of at least one hydroxyl group of the carbohydrate compound. In these compounds R1 is an alkyl group or an azaalkyl group, and R2 is a primary or secondary amino group.
摘要:
A bioproduct may be selectively separated from one or more impurities by means of a displacement chromatography system that includes a solvent, a chromatographic resin and a chemically selective displacer. The method includes: dissolving the bioproduct and the one or more impurities in a solvent; loading the bioproduct and the one or more impurities, in the solvent, on a chromatographic resin; displacing the bioproduct from the chromatographic resin with chemically selective displacer; and retaining the one or more impurities on the chromatographic resin. For this method, the bioproduct and the impurities have similar binding affinity for the chromatographic resin in the absence of the displacer.